The N Scale MTL 1134 Two Pair Coupler Conversion Kit by Micro-Trains Line is designed specifically for Bachmann 9722-1 & 9923 locomotives. This unassembled kit includes two pairs of beige plastic couplers in 1:160 scale, perfect for N gauge model railroads. Made in the United States and suitable for vintage model trains, this conversion kit ensures a seamless and authentic addition to your collection.